Improvement in counting-registers



@sind @tifare CHARLES W. PYLE, OF WILMINGTON, DELAWARE.

Letters Patent No. 113,794, dated April 18, 1871.

IMPROVEMENT IN COUNTING-REGISTERS.

The Schedule reta-rod to in thou Letten Patent and making part of thelame.

To all whom it may concern:

Be it known that I, CHARLES W. PYLE, of Wilmington,il1 the county of NewCastle and State of Delaware, have invented a new and improvedGounting-Register; and I do hereby declare that the following is a full,clear, and exact description thereof, which will enable others skilledin the art to make and use the same, reference being had to theaccompanying drawing forming part of this specification, in which-Figure 1 represents a front elevation of my improved adding-register.

Figure 2 is a. back' view, partly in section, of the same.

Figure 3 is avertical transverse section of the saine.

Similar letters nf reference indicate corresponding parts.

My invention consists in au improvement upon registers, which will befirst described in connection with all that is necessary to a fullunderstanding thereof and then clearly pointed out in the claim.

A in the drawingr represents a cylindrical case or box, which containsmy improved registering appa.l

ratus. Itis supported onv a suitable standard, lB, so as to bestationary.

C is a central axle or pin, fitted through the center of the case/A,being supported by the face and backplates a b of the same, sotlrattcauuotrevolve there- The face-plate c of the case has a hingedportion, c, which can he swung up, as in fig. 1, to give ready access tothe interior of the apparatus. The backplate lr is held in place byscrews, or otherwise, so as to be detachable.

Around the axle` are placed four, more orless, rin`gs, D E F G, whichare concentric aud of dierent diameters, so that their numbered facesare all in the same vertical plane. l

Each ring is, at its back, scoured to a circular disk, e, to constitute,with the same, a cup, the said disk being hung upon the axle to easilyrevolve thereon. The smaller cup, D, is thus contained within E, thiswithin F, which is embraced by the largest cup, G, asis clearly shown infig. 3.

The annular faces ot' the several cups are, however, flush, and closebehind the face-plate a. They are provided with figures, as in iig. 1,one figure. of each ring being visible through a small aperture, d, inthe face-plate a.

The several disks c of the aforesaid cups are held apart by washers, f,interposed between them, said washers being provided with feathers,which enter a groove of the axle, so that they cannot turn on thelatter. They prevent, thereby, the transmission of motion by frictionfrom one cup to another.

The back of each disk e has ten notches or indentures, g, arranged in acircle, of which one is, in all but the smaller disks, out entirelythrough, to forrn an aperture, h.

H is a sliding bar fitted through the case behind the aforesaid cups,and provided with a spring pawl, I, which is held against the back ofthelargest disk. When the bar H is moved up its pawl enters one of theindentures g of the largest disk, and as it cornes in contant with theupper sharp shoulder of the same it causes the said disk and its ring toturn one-tenth of a revolution, bringing, thereby, another ligure behindthe aperture d. When the pawl is drawn down it slips loose over theindenture without moving the disk. When the pawl reaches the aperture hof the largest disk it passes through the same and enters the notches inthe next disk, and so on, thus producing the necessary movement of disksfrom units to tens, from tens to hundreds, 85o. The largest ring Gcarries the figures which are used for units, the next the tens, thering E the hundreds, and D the thousands.

The upper working edge of the pawl is curved on a circle,l struck fromits pivot t', so that the action ot' the pawl on the outer disk or diskswill always be the same whether it ctouches or pierces them. A spring isor may be placed against the back disk to hohl the disks properlytogether.

The cap c is very useful, as it permits the rings to be set to anydesired position before starting a new count. The smaller ring, D, maybe connected into a disk witlrits hack e, as in tig. 3.

Having thus described my invention,

I claim as new and desire to secure by Letters Patent- The series ofdisks e, notched at g, and nperturerl at h, combined, as described,with'a single pawh I, 0pcrating through said apertures and uponsaidnotches, as and for the purpose specified.

CHARLES W. PYLE.

Witnesses:

ISAAC PYLE, A. C. PEGKHAM.

